Oil burner



Patented Aug. 12, 1930 UNITED STATES PATENT OFFICE Application fled Incat, 1928. Serial no. amass.

The principal obj ect'of this invention is to provide an oil burner forfurnaces, stoves and the like but more specially adapted for use a inconnection with poultry brooder houses.

A further object of this invention is to provide an oil burner forheating purposes, that when once installed requires little if anyattention from the user.

A still further object of this invention is to provide an oil burnerthat will operate as efiiciently on a low flame as on a high flame.

A still further object of this invention is to provide an oil burnerthat may be used continuously and indefinitely on high flame withoutdanger of the heat from'the same generating the fuel oilprematurely inthe pp y P P .I

A still further object of this invention is to provide an oil burnerthat .is capable of p automatic 'adjustment, relative to the degree ofheat desired. A still further object of this invention is to provide anoil burner that requires no motive power. for furnishing air underpressure, A still further object of this invention is to provide an oilburner that is refined in appearance, economical in manufacture anddurable in use. These andwther objects will be apparent to those skilledin'the art. I

My invention consists in the construction, 7 arrangement and combinationof the various parts of the device, whereby the objects contemplated areattained as hereinafter more fully set forth,pointed out inmy claim andillustrated in the accompanying drawings, in which:

Fig. 1 is a side sectional view plete invention ready for use. Fi 2 isan enlarged side view of the cone burner, portion of my device and morefully illustrates the same.

There are twomcthods of burning oil fuel, i. e vap'orizing' andato'mizing the charge before oxidization. Eithermay or may not use anelectric motorlf My'burner is of the former type and operatessuccessfully without the-employment of any motive power.

. The chief obje ction to" oil burners'that do not of my comf 'use amotor for air under pressure is their tendency to form carbon when theburner is operatin in its maximum capacity thereby inter ering seriouslywith their successful functioning. I have overcome these disadvantagesas will be appreciated by those familiar with the art.

I have used the numeral 10 to designate the hollow cone-shaped burnerportion of the device having its top blunt or flat as shown in Fig. 1.Extending approximate- 1y horizontal through the side wall of thecone-shaped member are a plurality of air ports 11. This cone-shapedmember is designed to rest on the inner marginal edge of the circulartrough 12 as shown in Fig. 1,

the purpose of which will hereinafter be appreciated.

The numeral 13 designates feet members for suporting the trough 12 aslight distance from the sup orting surface upon which the burner may eresting. Passlng under the trough 12, up through the cone-shaped member10 and communicating with the outside atmosphere adjacent the fiat topof the coneshaped member is the fuel inlet pipe 14. The numeral 15designates an inverted cup member resting on the, fiat top of thecone-shaped member and'enclosing the outlet end of the fuel pipe 14.This cup member is held from accidental displacement on the cone-shapedmember by having a rod 16 secured-in its bottom and extending into the.pipe 14 as shown in Fig. 1. The numeral 17 designates a plurality ofholes in the cup member adj acent its marginal edge. By this arrangement35 when fuel oil is passed through the pipe 14 it will run into the cupmember 15 from which it will pass'through the holes 17 and flowdownwardly andevenly over the 'side of the cone-shaped burner 10. Ifthis fuel oil on the side of the cone-shaped burner is ignited anintense heat will be produced, which will pass outwardly and upwardlythereby causing freshai'r' to pass under the trough 12, up into thecone-shaped burner and through the air ports 11.- By this constructionthe burner automatically furnishes suflicient air for proper combustionwithout the use of centrifugal fans and the like; 1 The cup mem' ber15'not only prevents an excessive amount of fuel oil from passing downover the cone shaped burner thereby providing an uneven feed butprevents the accidental burning of any fuel oil inside the fuel inletpipe 14. By the holes 17 being equally spaced apart one from the otherand at the same height relative to each other the fuel oil will becausedto flow uniformly downwardly on the coneshaped burner.

The air ports 11 as before stated are formed in the cone-shaped burnerat approximately a horizontal angle thereby preventing actuated nofurther fuel oil will be furnished the burner. -To prevent theaccidental displacement of the cone-shaped burner 10 on the trough 12 Ihave provided lugs 19 integ rally formed on the trough as shown in 7 1g.1.

The fuel oil su ply tank is designated by the numeral 20. eading fromthis tank is the fuel pipe 21 communicating with the ordinary needlevalve'body portion 22. Extending into the needle valve body portion isthe usual needle valve 23 having the head 24. The numeral 25 designatesa coil spring for yieldingly holding-the needle valve out of engagementwith the valve seat 26. Secured by unions 27 to the end of the valveoutlet pipe 28 and the inlet end of the pipe 14 is a sight glass 29. Bythis arrangement when the needle valve 23 is; not seating with the valveseat 26 the oil will pass through the pipe 28 and into the fuel pipe 14thereby making it possible to observe through the sight glass 29 theamount of fuel oil being used. To prevent the fuel oil from running downthe side wall of the sight glass 29 thereby obscuring the View throughthe sight glass I have provided a small funnel member 30 in the end ofthe pipe 28 as shown in 1.

Secured by any suitable means on the body portion 22 of the needle valveis the bracket member 31. Pivoted to this bracket member at one end andengaging the head 24 ofthe needle valve is the link 32. Secured to thefree end of the link 32 and extending downwardly therefrom is the arm 33having thehead 34. Secured near the free end of the bracket 31 at oneend is the ordinary wafer thermostat 35. Pivotally secured to the freeend of the bracket 31 and secured to the other end of the thermostat 35is the arm 36 as shown in Fig. 1. Threaded through the free end portionof the arm 36 is the adjusting screw 37 having its end swivelly engagingthe head 34. The numeral 38 designates a lock nut on the adjusting screw37. By this arrangement the thermostat 35 will automatically operate theneedle valve 23. This operation may be adjustably secured by the use ofthe adjusting screw 37 as is well known in the art. Threaded through thebracket member 31 and capable of engaging the link 32 for limiting themovement of same in an upward direction is the adjusting screw 39 havingthe lock nut 40. Threaded through the short end portion of the bracket31 and capable of engaging the link 32 for limiting its downwardmovement is the adjusting screw 41 having the lock 'nut 42. By adjustingthe screws 39 and 41 the amount of move-- ment of the needle valve 23 bthe thermostat 35 may be controlled and 1f the thermostat is not usedthe needle valve may be securely set at any desired position against anymovement by the adjustin screws.

If the device is to be use for poultry brooder houses a shield orhousing 43 should be placed around the cone-shaped burner 10 and allowedto rest on the outer marginal edge of the trough 12 as shown in Fig. 1.The numeral 44 designates a flue communicating with the top of thehousing 43. To prevent the heat'from immediately passin out of thehousing 43 through the flue 44 have provided the baflie plate 45directly under the flue '44. When the housing 43 is used I recommend anair pipe 46 extending into the housing and communicating with theoutside atmosphere at a oint above the cup member 15 thereby furnis ingadditional air inside the housing 43 for the proper combustion of thefuel.

' The burner is to be so adjusted that all of the fuel oil passing downthe side of the coneshape burner will be consumed in flame before itreaches the trough 12.

By. the fuel feed pipe 14 extending up through the center of thecone-shaped burner, it will always be kept comparatively cool by theincoming fresh air thereby eliminating any danger of the fuel oilgenerating intov gas before it reaches the inside of'the cup member 15.

Some changes may be made in the construction, arrangement of my improvedoil burner, without departing from the real spirit and purpose of minvention and it is my intention to cover y my claim any modified formsof structure or use of mechanical equivalents which may be reasonablyincluded within their scope.

I claim:

In a device of the class described, a circular trough, a cone-shapedmember resting on the inner marginal edge of said trough and having aplurality of air holes passing through its side wall, a housing resting.on the outer marginal ed e of said trough and embracing saidconeapedmember, a. flue communicating with the inside of said housing, abafile member adjacent said flue, an air pipe extending1 into saidhousing and communicatingwit the inside of said housing at a pointabove'said cone-shaped member, and a fuel supply pipe extending throughsaid cone-shaped member and terminating with the small end of the same.

' HERSCHEL J. LIGI-ITY.

